Extension joint for stove pipes



Nov. 29, 1932. R. H. TALLEY ET AL EXTENSION JOINT FOR STOVE PIPES FiledApril 17. 1951 INVENTOR ATTORNEYS Patented Nov. 29, 1932 UNITEDs'la'lrzs` ROBERT H. TALLEY AN'D CHARLES Ii. '.PRI.1CHE'JI"J.", OFlBURNSIDE, MISSISSIPPI EXTENSION JOIN'JI FOR STOVE PIPES Application ledApril 17,

This invention relates to pipe joints and has for an object theprovision of a pipe section which may be adjusted with respect to anadjacent pipe section and securely held in adjusted position, so as toprovide in connection with other pipe sections, a pipe of a desiredlength without cutting, the invention being especially applicable tostove pipes.

Another object of the invention is the provision of a pipe section ofthe above charac-ter which includes spaced bendable pipe engagingtongues cut or struck from said section and having means to close theslits around the tongues which will also reinforce the section.

With the above and other objects in view, i the invention furtherincludes the following Y novel features and details of constructionto behereinafter more fully described, illustrated in the accompanyingdrawing and pointed out in the appended claim.

In the drawing: Figure 1 isk an elevationvof a pipe joint constructed inaccordance with the inven-V tion.

Figure 2 is a longitudinal sectional view thereof.

Figure 3 is an end view. n Figure 4; is a similar view looking at the'50 opposite end of the joint from that shown in Figure 3. Y

Figure 5 is a section on the line 5-5 of Figure 2.

Referring to the drawing in detail wherein like characters of referencedenote corresponding parts, the reference character 10 indicates a pipesection which may form aV part of a stove pipe and which is enlarged atone end as shown at 11 to receive the crimped end of an adjacent pipesection (not shown). The opposite end of the pipe section 10 is adaptedto be slidingly received within an adjacent pipe section 12 so that rthe sections 10 and 12 may be relatively ada justed to provide a pipe ofa given length without cutting any of the sections.

In order to hold the sections 10 and 12 against relative slidingmovement in one direction, v

a plurality of tongues 13. These tongues the section 10 has cuttherefrom` 1931. serial No. 530,932.

are'longitudinally aligned and spaced and are arranged upondiametrically opposite sides of the pipe section; These tongues are bentin an outward inclined direction and thence in an upward straightdirection, as 5 fully illustrated at 14, consequently, when the adjacentend of the inner pipe section isinserted within the outer pipe section12 the inner end of the section 12 will iit beneathy the straightportion ofthe tongue 13 and in contact with? the inclined portionthereof. By this arrangement, it will be seen that the particular mannerof bending the tongues 13 forms an abutment for the inner end of thesection 12.

In order to preventthe outward passage` of smoke and the inward passageof air out of and into the pipe, the section 10 is provided with anelongated rstrip 15 upon diainetrically opposite sides of and within thepipe section 10. This strip closes the slits 16,V around the tongues 13and in addition, acts to reinforce the pipe section which might beweakened in forming the tongues. The strips 15, as better shown inFigures 5 3 and 4 of the drawing, are ofa contour to i conform withthecontour of the pipe section 10 and are secured within the inner pipesection 10 with one end of the strips ush with the adjacent end lof thelatter-mentioned section by means of rivets 17 or other suitable means.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is herein reserved tomake such changes as properly fall'within the scope of the appendedclaim.

Having described the invention what is claimed is :-k i

In a pipe joint, arpair of telescopically engaged stovepipe sections,longitudinally spaced and aligned bendable tongues struck from the innerpipe section in an outwardly inclined direction and thence in anupwardly straight direction upon diametrically opposite sides of thesaid inner pipe section disposed beneath the straight upper portion ofthe tongue and abutting with the inclined portion thereof, anddiametrically disposed longitudinally arranged elongated strips of acontour conforming with the inner contour of the inner pipe section andcontacting with the latter and riveted thereto at a point flush With theadjacent end thereof and over the slits around the tongues andreinforcing the inner end of the inner pipe section.

In testimony whereof We aix our signatures.

ROBERT H. TALLEY. CHARLES PRITCHETT.

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